Vacuum refining lifting control device and vacuum refining system

Abstract

The utility model provides a vacuum refining lifting control device and a vacuum refining system, and relates to the technical field of metallurgy, the vacuum refining lifting control device comprises a walking mechanism, a jacking mechanism, a steel ladle and a lifting control module, the side of the jacking mechanism is provided with a jacking height detection module, and the jacking height detection module is used for detecting the lifting height of the jacking mechanism; the steel ladle is arranged on the jacking mechanism, a liquid level height detection module is arranged above the steel ladle, and the liquid level height detection module is used for detecting the liquid level height in the steel ladle; the lifting control module is electrically connected with the jacking mechanism, the jacking height detection module and the liquid level height detection module, and the lifting control module can control the lifting adjusting amount of the jacking mechanism based on the setting height of a bottom pipe opening of the dip pipe, the lifting height of the jacking mechanism and the liquid level height in the steel ladle. According to the utility model, the jacking height of the jacking mechanism can be automatically controlled based on machine vision and an image processing technology, the control precision is better, and the processing effect of a vacuum circulation degassing method is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of metallurgy, in particular to a vacuum refining lifting control device and a vacuum refining system. Background Art

[0002] The vacuum cycle degassing method (RH method) is an important process of refining outside the furnace. The vacuum cycle degassing method plays a very important role in improving the quality of steel products, expanding quality, reducing costs, and optimizing steelmaking production processes. When using the vacuum cycle degassing method to treat molten steel, the ladle must first be sent to the treatment position with a ladle car, the ladle is lifted, the immersion tube is immersed a certain distance below the steel liquid surface, and then the vacuum pump is started. As the pressure in the vacuum tank drops, the molten steel in the ladle is sucked into the vacuum tank through the immersion tube. Lifting gas is blown into the immersion tube as the riser, and the molten steel is further lifted through the "bubble pump" principle of the lifting gas. The molten steel flows back into the ladle from the immersion tube as the downcomer, forming a circulation of molten steel.

[0003] In the prior art, the ladle lifting and lowering processes need to be completed by manually controlling the ladle lifting mechanism. When the ladle lifting mechanism is manually controlled to rise or fall, control errors are likely to occur, thereby reducing the lifting accuracy of the ladle lifting mechanism. In addition, during the ladle rising or falling process, the operator needs to monitor and adjust the lifting height of the ladle at all times, which significantly increases the labor intensity and labor costs. In addition, if the manual operation is improper, the depth of the immersion tube inserted into the molten steel will exceed the safe range, which is very likely to cause safety accidents such as slag suction, molten steel overflow or equipment burning.

[0004] Therefore, how to improve the control accuracy of the ladle lifting mechanism has become a technical problem to be solved urgently. Therefore, the inventor, relying on many years of experience and practice in related industries, proposes a vacuum refining lifting control device to overcome the defects of the prior art. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the technical problem to be solved by the embodiments of the utility model is to provide a vacuum refining lifting control device and a vacuum refining system for improving the control accuracy of the ladle lifting mechanism.

[0006] The above-mentioned purpose of the utility model can be achieved by adopting the following technical solutions. The utility model provides a vacuum refining lifting control device, comprising:

[0007] A walking mechanism, wherein the walking mechanism is movably arranged below the impregnation pipe of the vacuum tank;

[0008] A steel ladle, wherein the steel ladle is liftably arranged on the walking mechanism, and a liquid level detection module is arranged above the steel ladle, and the liquid level detection module is used to detect the liquid level in the steel ladle;

[0009] A lifting mechanism, the lifting mechanism and the immersion tube are arranged at a relative interval, the lifting mechanism can lift the ladle, and a lifting height detection module is provided on the side of the lifting mechanism, and the lifting height detection module is used to detect the lifting height of the lifting mechanism;

[0010] A lifting control module, wherein the lifting control module is electrically connected to the lifting mechanism, the lifting height detection module and the liquid level detection module, and the lifting control module can control the lifting adjustment amount of the lifting mechanism based on the setting height of the bottom nozzle of the immersion tube, the lifting height of the lifting mechanism and the liquid level in the ladle.

[0011] In a preferred embodiment of the present invention, the traveling mechanism comprises a ladle car, and the ladle car is movably arranged below the immersion pipe.

[0012] In a preferred embodiment of the present utility model, a limiting structure is provided on the ladle car, and the ladle is arranged on the ladle car through the limiting structure.

[0013] In a preferred embodiment of the present utility model, the lifting mechanism includes a hydraulic cylinder, the hydraulic cylinder is connected to a hydraulic control system, and the hydraulic cylinder is placed below the traveling mechanism and can lift the traveling mechanism.

[0014] In a preferred embodiment of the present invention, the lifting height detection module includes an encoder arranged on the side of the lifting mechanism, the encoder is electrically connected to the lifting control module, and the encoder can be used to detect the lifting height of the lifting mechanism.

[0015] In a preferred embodiment of the present utility model, the lifting height detection module includes a displacement sensor arranged on the side of the lifting mechanism, the displacement sensor is electrically connected to the lifting control module, and the displacement sensor can be used to detect the lifting height of the lifting mechanism.

[0016] In a preferred embodiment of the present invention, the lifting control module includes a PLC control unit, the PLC control unit is electrically connected to the lifting mechanism, the lifting height detection module and the liquid level detection module, and the PLC control unit can be equipped with a lifting height control program.

[0017] In a preferred embodiment of the present invention, the liquid level detection module includes at least one camera unit, and the camera unit is arranged above the ladle, and the liquid level in the ladle is placed in the field of view of the camera unit.

[0018] In a preferred embodiment of the present invention, the lifting mechanism is arranged in the pit in a liftable manner.

[0019] The utility model also provides a vacuum refining system, comprising: a vacuum tank, on which an immersion pipe is arranged; the aforementioned vacuum refining lifting control device, wherein the lifting mechanism of the vacuum refining lifting control device is arranged at a relative interval to the immersion pipe, and the walking mechanism of the vacuum refining lifting control device can be movably arranged below the immersion pipe.

[0020] The technical solution of the utility model has the following significant beneficial effects:

[0021] When the vacuum refining lifting control device of the utility model is used, the ladle is transported to the bottom of the dipping tube of the vacuum tank by the walking mechanism, and the ladle is lifted by the lifting mechanism so that the bottom nozzle of the dipping tube is inserted into the molten steel in the ladle. At the same time, the lifting height detection module can detect the lifting height of the lifting mechanism, and the liquid level detection module can detect the liquid level of the molten steel in the ladle, and the setting height of the bottom nozzle of the dipping tube from the ground can be measured in advance, so that the lifting control module can calculate the target lifting height required by the lifting mechanism in real time based on the lifting height of the lifting mechanism, the liquid level of the molten steel in the ladle, the setting height of the bottom nozzle of the dipping tube from the ground, and the preset target depth of the bottom nozzle of the dipping tube inserted into the molten steel. The lifting control module can automatically control the lifting mechanism to move to the target lifting height, has better control accuracy, and can realize an automated control process without manual participation in control, thereby reducing labor costs and eliminating safety risks caused by manual operation errors. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0023] The drawings described herein are only for explanation purposes and are not intended to limit the scope of the present invention in any way. In addition, the shapes and proportional dimensions of the components in the drawings are only for illustration purposes to help understand the present invention, and are not intended to specifically limit the shapes and proportional dimensions of the components of the present invention. Under the guidance of the present invention, those skilled in the art can select various possible shapes and proportional dimensions to implement the present invention according to specific circumstances.

[0024] Figure 1 It is a structural schematic diagram of the vacuum refining lifting control device of the utility model.

[0025] Reference numerals in the above drawings:

[0026] 100. vacuum tank; 101. immersion tube;

[0027] 200. Traveling mechanism; 201. Ladle car;

[0028] 300. Lifting mechanism; 301. Lifting height detection module;

[0029] 400. ladle; 401. liquid level detection module;

[0030] 500, lifting control module; 501, PLC control unit. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] Implementation Method 1

[0033] Please refer to Figure 1As shown, in an embodiment of the utility model, a vacuum refining lifting control device is provided, which comprises at least a traveling mechanism 200, a lifting mechanism 300, a ladle 400 and a lifting control module 500. The traveling mechanism 200 is movably arranged below the immersion pipe 101 of the vacuum tank 100; the ladle 400 is movably arranged on the traveling mechanism 200, and a liquid level detection module 401 is arranged above the ladle 400. The liquid level detection module 401 is used to detect the liquid level in the ladle 400; the lifting mechanism 300 and the immersion pipe 101 are connected to each other. The lifting mechanism 300 is arranged with relative intervals and can lift the ladle 400. A lifting height detection module 301 is provided on the side of the lifting mechanism 300, and the lifting height detection module 301 is used to detect the lifting height of the lifting mechanism 300; the lifting control module 500 is electrically connected to the lifting mechanism 300, the lifting height detection module 301 and the liquid level detection module 401. The lifting control module 500 can control the lifting adjustment amount of the lifting mechanism 300 based on the setting height of the bottom nozzle of the immersion tube 101, the lifting height of the lifting mechanism 300 and the liquid level in the ladle 400.

[0034] On the whole, when the vacuum refining lifting control device is used, the ladle 400 is transported to the bottom of the immersion tube 101 of the vacuum tank 100 by the walking mechanism 200, and the ladle 400 is lifted by the lifting mechanism 300 so that the bottom pipe mouth of the immersion tube 101 is inserted into the molten steel in the ladle 400.

[0035] At the same time, the lifting height detection module 301 can be used to detect the lifting height of the lifting mechanism 300, and the liquid level detection module 401 can be used to detect the liquid level of the molten steel in the ladle 400, and the setting height of the bottom nozzle of the dipping tube 101 from the ground can be measured in advance, so that the lifting control module 500 can calculate the target lifting height required by the lifting mechanism 300 in real time based on the lifting height of the lifting mechanism 300, the liquid level of the molten steel in the ladle 400, the setting height of the bottom nozzle of the dipping tube 101 from the ground, and the preset target depth of the bottom nozzle of the dipping tube 101 inserted into the molten steel, and the lifting control module 500 can automatically control the lifting mechanism 300 to move to the target lifting height.

[0036] The utility model has better control accuracy and can realize an automated control process by cooperating with the lifting control module 500, the lifting height detection module 301 and the liquid level detection module 401, thereby reducing labor costs and eliminating safety risks caused by manual operation errors.

[0037] In the embodiment of the present invention, the traveling mechanism 200 includes a ladle car 201, and the ladle car 201 is movably disposed below the immersion pipe 101. Designers can adjust the specific structure of the ladle car 201 according to usage requirements, and no specific limitation is made here.

[0038] Furthermore, in order to improve the transportation stability of the ladle car 201, tracks may be provided on the ground, and the ladle car 201 may be movably provided on the tracks, and no specific limitation is made here.

[0039] In the embodiment of the utility model, a limiting structure is provided on the ladle car 201, and the ladle 400 is arranged on the ladle car 201 through the limiting structure. By arranging the limiting structure on the ladle car 201, the placement stability of the ladle 400 is improved by utilizing the limiting structure.

[0040] In a specific embodiment, the limiting structure includes a limiting block protruding from the top of the ladle car 201 , and the limiting block is arranged around the periphery of the ladle 400 , thereby improving the placement stability of the ladle 400 .

[0041] In another specific embodiment, the limiting structure includes a limiting groove arranged on the top of the ladle car 201. By placing the ladle 400 in the limiting groove, the placement stability of the ladle 400 is improved.

[0042] The ladle 400 has a relatively high temperature when storing molten steel, so the portion of the ladle car 201 that contacts the ladle 400 can be made of heat-resistant material, thereby increasing the service life of the ladle car 201.

[0043] In an embodiment of the present utility model, the lifting mechanism 300 includes a hydraulic cylinder, which is connected to a hydraulic control system. The hydraulic cylinder is placed below the traveling mechanism 200 and can lift the ladle 400 .

[0044] The hydraulic control system can control the hydraulic cylinder to lift the ladle 400 on the ladle car 201, so that the dipping tube 101 can be inserted into the molten steel in the ladle 400 for vacuum cycle degassing.

[0045] Designers can adjust the specific structure of the hydraulic cylinder and the hydraulic control system according to usage requirements, and no specific restrictions are made here.

[0046] Of course, in other feasible embodiments, the designer may adjust the lifting mechanism 300 according to the use requirements, for example, setting the lifting mechanism 300 to a mechanical lifting mechanism or a pneumatic lifting mechanism, and no specific limitation is made here.

[0047] In a feasible implementation manner of the present invention, the lifting height detection module 301 includes an encoder arranged on the side of the lifting mechanism 300 , the encoder is electrically connected to the lifting control module 500 , and the encoder can be used to detect the lifting height of the lifting mechanism 300 .

[0048] By setting an encoder on the side of the lifting mechanism 300, the encoder can be used to measure the lifting height of the lifting mechanism 300 and transmit the data to the lifting control module 500, so as to facilitate the automatic control of the lifting mechanism 300 using the lifting control module 500, and have better control convenience.

[0049] Designers can determine the specific model of the encoder according to usage requirements, such as a yardstick encoder, and no specific restrictions are made here.

[0050] In another feasible implementation manner of the present invention, the lifting height detection module 301 includes a displacement sensor arranged on the side of the lifting mechanism 300 , the displacement sensor is electrically connected to the lifting control module 500 , and the displacement sensor can be used to detect the lifting height of the lifting mechanism 300 .

[0051] By setting a displacement sensor on the side of the jacking mechanism 300, the displacement sensor can be used to measure the lifting height of the jacking mechanism 300, and the data can be transmitted to the lifting control module 500, so as to facilitate the automatic control of the jacking mechanism 300 using the lifting control module 500, and have better control convenience.

[0052] Among them, the displacement sensor is also called a linear sensor, which is a linear device belonging to metal sensing. Designers can determine the specific model of the displacement sensor according to the needs of use, and no specific restrictions are made here.

[0053] In an embodiment of the present utility model, the lifting control module 500 includes a PLC control unit 501, which is electrically connected to the lifting mechanism 300, the lifting height detection module 301 and the liquid level detection module 401, and the PLC control unit 501 can be equipped with a lifting height control program.

[0054] Specifically, a shell is provided on the PLC control unit 501, and the shell is installed on the ground through a bracket and placed in the control room. The PLC control unit 501 can be electrically connected to the lifting mechanism 300, the lifting height detection module 301 and the liquid level detection module 401 through wired or wireless communication.

[0055] Among them, the PLC control unit 501 is a new generation of industrial control device formed by introducing microelectronic technology, computer technology, automatic control technology and communication technology on the basis of the traditional sequential controller. In addition, by carrying the lifting height control program on the PLC control unit 501, the automatic control process of the jacking mechanism 300 can be realized, with better control effect.

[0056] Designers can adjust the specific model of the PLC control unit 501 and the specific code of the lifting height control program according to usage requirements, and no specific restrictions are made here.

[0057] Of course, in other feasible embodiments, designers can adjust the specific structure of the lifting control module 500 according to usage requirements. For example, the lifting control module 500 can also be set as a computer, which is not specifically limited here.

[0058] How to accurately obtain the position of the molten steel level plays a vital role in the automatic lifting control of the ladle 400. In the existing steelmaking process, the molten steel level is generally manually observed by naked eyes to determine whether it is appropriate. The manual observation method has poor accuracy on the one hand and reduces production efficiency on the other.

[0059] When measuring the liquid level of molten steel by laser ranging, infrared ranging and other methods, since molten steel itself has strong radiation, it will absorb laser, infrared and other energies, thereby affecting the measurement accuracy of laser ranging and infrared ranging, resulting in the inability to accurately obtain the liquid level of the molten steel in the ladle 400.

[0060] In order to solve the above problems, in an embodiment of the present utility model, the liquid level detection module 401 includes at least one camera unit, which is arranged above the ladle 400, and the liquid level in the ladle 400 is placed in the field of view of the camera unit.

[0061] By providing a camera unit, the camera unit can locate and measure the liquid level of the molten steel in the ladle 400 based on machine vision and image processing technology. It is not easily affected by the radiation of the molten steel and thus has a more accurate measurement accuracy.

[0062] In a specific embodiment, the imaging unit is a camera, which is mounted above the ladle 400 via a bracket, and the field of view of the camera can cover the molten steel in the ladle 400 .

[0063] The camera can be used to capture image data of the molten steel in the ladle 400, and the liquid level of the molten steel in the ladle 400 can be obtained in real time using machine vision and image processing technology.

[0064] Designers can adjust the specific model of the camera according to usage needs, and there is no specific restriction here.

[0065] Furthermore, multiple camera units may be provided, which is not specifically limited here. The cooperation of multiple camera units can avoid the problem of failure of a single camera unit and improve the measurement accuracy.

[0066] In the embodiment of the utility model, the lifting mechanism 300 is arranged in the pit in a liftable manner. By arranging the lifting mechanism 300 in the pit, it is not necessary to occupy the ground space, and the movement of the walking mechanism 200 is avoided. The designer can determine the specific structure of the pit according to the use requirements, and no specific limitation is made here.

[0067] In a feasible implementation method of the present invention, the vacuum refining lifting control device controls the rising and falling of the lifting mechanism 300 by calculating the target height of the lifting mechanism 300 at different times.

[0068] Before the ladle 400 meets the lifting conditions, the target height (H) of the lifting mechanism 300 is 0 m.

[0069] When the ladle car 201 arrives at the processing position, before the vacuum treatment, the target height (H) of the lifting mechanism 300 = the bottom nozzle height (H1) of the immersion tube 101 - the height of the molten steel in the ladle 400 (H2) + the target insertion depth (H3). Among them, the bottom nozzle height (H1) of the immersion tube 101 is the design height, which is generally a fixed value; the data of the height of the molten steel in the ladle 400 (H2) comes from the liquid level detection module 401; the target insertion depth (H3) is an empirical value, generally ≥400mm. Of course, the target insertion depth (H3) can also be set to other values, and no specific numerical limit is made here.

[0070] When the vacuum treatment begins, the target height (H) of the lifting mechanism 300 = the bottom nozzle height (H1) of the immersion tube 101 - the height of the molten steel in the ladle 400 (H2) + the target insertion depth (H3) + the descending height (H4) of the molten steel in the ladle 400; wherein, the descending height (H4) of the molten steel in the ladle 400 is calculated by the program based on data such as the vacuum degree, the inner diameter of the ladle 400, the inner diameter of the vacuum tank 100, and the inner and outer diameters of the immersion tube 101.

[0071] When the vacuum treatment is completed, the target height (H) of the lifting mechanism 300 = the bottom nozzle height (H1) of the immersion pipe 101 - the height of the molten steel in the ladle 400 (H2) + the target insertion depth (H3) + the descending height of the molten steel in the ladle 400 (H4); when the vacuum degree is greater than 95 kpa, the target height (H) of the lifting mechanism 300 = the lower edge height (H1) of the immersion pipe 101 - the height of the molten steel in the ladle 400 (H2) + the target insertion depth (H3).

[0072] When the conditions for the ladle 400 to continue to descend are met, the target height (H) of the lifting mechanism 300 is 0 m.

[0073] The lifting control module 500 determines and calculates the real-time difference between the height of the lifting mechanism 300 and the target height (H). When the difference is within ±5 mm, it is determined that the lifting or lowering is in place, and the lifting control module 500 controls the lifting mechanism 300 to automatically stop the lifting or lowering operation. The lifting or lowering speed of the lifting mechanism 300 will be dynamically adjusted according to the difference between the actual value and the target value.

[0074] Implementation Method 2

[0075] A vacuum refining system is provided in an embodiment of the utility model, which includes a vacuum tank 100 and a vacuum refining lifting control device as described in Embodiment 1, wherein an immersion pipe 101 is provided on the vacuum tank 100; a lifting mechanism 300 of the vacuum refining lifting control device is arranged at a relative interval to the immersion pipe 101, and a walking mechanism 200 of the vacuum refining lifting control device can be movably arranged below the immersion pipe 101.

[0076] The specific structure, working principle and beneficial effects of the vacuum refining lifting control device are the same as those described in the first embodiment, and will not be repeated here. The vacuum refining system can automatically control the lifting height of the lifting mechanism 300 based on machine vision and image processing technology by using the vacuum refining lifting control device described in the first embodiment, has better control accuracy, and improves the processing effect of the vacuum cycle degassing method.

[0077] All articles and references disclosed, including patent applications and publications, are incorporated herein by reference for various purposes. The term "consisting essentially of ... " describing a combination should include determined elements, ingredients, parts or steps and other elements, ingredients, parts or steps that do not substantially affect the basic novel features of the combination. The use of the terms "comprising" or "including" to describe the combination of elements, ingredients, parts or steps here also contemplates the implementation method consisting essentially of these elements, ingredients, parts or steps. Here, by using the term "may", it is intended to illustrate that any attribute described that "may" includes is optional. Multiple elements, ingredients, parts or steps can be provided by a single integrated element, ingredient, part or step. Alternatively, a single integrated element, ingredient, part or step can be divided into separate multiple elements, ingredients, parts or steps. The disclosure "one" or "one" used to describe an element, ingredient, part or step is not said to exclude other elements, ingredients, parts or steps.

[0078] Each embodiment in this specification is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. The above embodiments are only for illustrating the technical concept and features of the utility model, and their purpose is to enable people familiar with this technology to understand the content of the utility model and implement it accordingly, and cannot be used to limit the protection scope of the utility model. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. A vacuum refining lifting control device, characterized in that: include: A walking mechanism, wherein the walking mechanism is movably arranged below the impregnation pipe of the vacuum tank; A steel ladle, wherein the steel ladle is liftably arranged on the walking mechanism, and a liquid level detection module is arranged above the steel ladle, and the liquid level detection module is used to detect the liquid level in the steel ladle; A lifting mechanism, the lifting mechanism and the immersion tube are arranged at a relative interval, the lifting mechanism can lift the ladle, and a lifting height detection module is provided on the side of the lifting mechanism, and the lifting height detection module is used to detect the lifting height of the lifting mechanism; A lifting control module, wherein the lifting control module is electrically connected to the lifting mechanism, the lifting height detection module and the liquid level detection module, and the lifting control module can control the lifting adjustment amount of the lifting mechanism based on the setting height of the bottom nozzle of the immersion tube, the lifting height of the lifting mechanism and the liquid level in the ladle.

2. The vacuum refining lifting control device according to claim 1, characterized in that: The traveling mechanism comprises a ladle car, and the ladle car is movably arranged below the immersion pipe.

3. The vacuum refining lifting control device according to claim 2, characterized in that: The ladle car is provided with a limiting structure, and the ladle is arranged on the ladle car through the limiting structure.

4. The vacuum refining lifting control device according to claim 1, characterized in that: The lifting mechanism comprises a hydraulic cylinder, which is connected to a hydraulic control system. The hydraulic cylinder is placed below the traveling mechanism and can lift the traveling mechanism.

5. The vacuum refining lifting control device according to claim 1, characterized in that: The lifting height detection module includes an encoder arranged on the side of the lifting mechanism, the encoder is electrically connected to the lifting control module, and the encoder can be used to detect the lifting height of the lifting mechanism.

6. The vacuum refining lifting control device according to claim 1, characterized in that: The lifting height detection module includes a displacement sensor arranged on the side of the lifting mechanism, the displacement sensor is electrically connected to the lifting control module, and the displacement sensor can be used to detect the lifting height of the lifting mechanism.

7. The vacuum refining lifting control device according to claim 1, characterized in that: The lifting control module includes a PLC control unit, which is electrically connected to the lifting mechanism, the lifting height detection module and the liquid level detection module. The PLC control unit can be equipped with a lifting height control program.

8. The vacuum refining lifting control device according to claim 1, characterized in that: The liquid level detection module includes at least one camera unit, which is arranged above the ladle, and the liquid level in the ladle is placed in the field of view of the camera unit.

9. The vacuum refining lifting control device according to claim 1, characterized in that: The lifting mechanism is arranged in the pit in a liftable manner.

10. A vacuum refining system, characterized in that: include: A vacuum tank, wherein the vacuum tank is provided with an immersion pipe; According to any one of claims 1 to 9, the lifting mechanism of the vacuum refining lifting control device is arranged at a relative interval to the immersion tube, and the walking mechanism of the vacuum refining lifting control device can be movably arranged below the immersion tube.

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